Improved sheet-metal roofing



' Sheets, A,`of iron or otherfmetal Rw/Jaim W Nw, W I

@anni to EZEKIEL MiLLsQoF BALTIMORE', MARYEAND.' lLetters Patent No. 84,205, dated Novmnber 17, 1868.

d IMPROVED SHEET-METAL ROOF'ING.

The Schedule referred to in these Letters Patent and making part of the same.

To allvhom it may conce'm;

Beit known that I, EZEK'IEL MILLS, of theo-ity of Baltimore, in the State of Marvland. have invented a new and u setul improvementin treparingr Metal for Roofing and other purposes; and I do hereby declare the following to be a.' full, clear, and exact description thereof', reference being had to the accompanying drawings, which are made a part of this specification.

Theends of sheet-iron or other metal strips, of any desired width, are locked or hooked-together, and, ,in this condition, pass vd between rollers to close the seams, and then through a bath of molten tin or other soit metal, which coats the entire surfaces of the metal, and

. eectually secures and covers the seams, so as to form continuous strips of indefinite length without any ap- D preciable or pervious joints.

The drawing represents a vertical section o'f a machine illustrating my invention.

I of suitable width, are,'one alter another, hooked together as shown at a, and then pass between rollers B B', the upper one of which works in bearings,held down byscrews C, to regu'- late the pressure. The joints being thus flattened down, the connected sheets are carried through an 'acid bath, D, to remove any oxide, and prepare the surface for the' 'reception of the tin, zinc,'or other metal with which it iscoatedin a sewndbath E, a fire, F, being employedto keep the metal in the bath E in a melted state Rollers G and H, titten to slide v ertically in grooves g h, rest'by their weight upon the metallic strip A, to i keep it .under the suifzwe of the liquids in the respective baths D and E.

' The molten metal in the bath E, beside imparting a. uniform coating to the shcetiron, ctfectually lls and secures the transverseseams a, after they have been flattened as before described, and any supertiuity ofthe sott metal is removed by 'a scraper, L'which may be held adjustably by screws i.

As the completed metallic strip leaves the machine,

itis wound upon a reel, J, whiolrmay be rotated by nv crank,-0r a pulley and weight, or other means, either to draiv the metal through the machine, or to take up the slack as it is carried through the machine by the rotation ofthe rollers B B', by a cia-nk, or any suitable ower. It will be readily seen, that, hy thc above-described p'rocess, continuous sheets ofany desirable length maybe produced, without any transverse joints in which water can lodge, or through which it can possibly pass.

Having thus described my invention,

What I claim as new, and desire to secure by Let ters Patent, is- A The continuous metallic strips, jointed and coated-bv the process herein described.

To the above specification of my invention, I haie signed my hand, this 1st day of October, 1868.

^ EZEKIEL MILLS.

Witnesses:

OoTAvIUs KNIGHT, W. B. Dennie: 

